If the windows in your Chevy are steaming up and you're not in the backseat, you just may have a problem. Or if you notice coolant dripping from under the glovebox on the passenger's toe board, no ...
Start by searching for a small cylindrical metal object sticking out of the engine. Chances are it’ll be on one side. This is the spark plug. Look for a fairly thick wire at the end of the spark plug.